In this thrilling sequel to The Stonekeeper in the Amulet series, Emily and her brother Navin head for Kanalis, a beautiful and mysterious city of waterfalls, where they hope to find the antidote for the poison that felled their mother. That cure lies in the eggs of a giant serpent atop Demon's Head Mountain, but the kids' archenemy, Trellis, is headed for the peak, too.
A battle that will engulf all of Kanalis is looming. It´s up to Em to triumph over evil while controlling the amulet's power...without losing herself!